supply of spare parts for maintenance of equipment and instruments required for different water testing laboratories related to water quality monitoring and surveillance activities under public health engineering department, government of wb , lc display for uv visible spectrophotomete , power pack for inolab 720 ph/cond/ion meter , electrode for cyberscan ph 510 /700 ph meter,general purpose epoxy body ph electrode , mother board with integrated key pad & display for ph 510/700 , power pack for cyberscan ph 510/700 ph meter , basic ion meter ph ion 7320/star a 214/accumet ion meter , fluoride ion selective electrode ionplus-accumet combonation solid state combination for fluoride ion meter , power adaptar sl series balance , ph electrode for inolab 720 ph meter,sentix41 , metal heater for 4 lit all glass horizental water distillation unit , boilerfor 4 lit all glass horizental water distillation unit , kettle heating ,2 kw for water distillation plant ss , repair for broken quartz double distillation unit to maintain un-interrupted sample testing , basic turbidity unit with motherboard &display with integrated chasis , key pad for tb210ir/tb211ir turbidity meter , key pad for uv1/aquamate spectrophotometer , display with dust frame-pharo , power battery for tb210ir turbidity meter, 9v duralock alkaline, duracell brand , purulia